PMID- 33602684 OWN - NLM STAT- MEDLINE DCOM- 20220316 LR - 20220316 IS - 1557-3265 (Electronic) IS - 1078-0432 (Linking) VI - 27 IP - 10 DP - 2021 May 15 TI - Inotuzumab Ozogamicin for Relapsed/Refractory Acute Lymphoblastic Leukemia in the INO-VATE Trial: CD22 Pharmacodynamics, Efficacy, and Safety by Baseline CD22. PG - 2742-2754 LID - 10.1158/1078-0432.CCR-20-2399 [doi] AB - PURPOSE: We assessed the relationship between cluster of differentiation-22 (CD22) expression and outcomes of inotuzumab ozogamicin versus standard of care (SC) in INO-VATE (NCT01564784). PATIENTS AND METHODS: Adults with relapsed/refractory B-cell precursor CD22-positive (by local or central laboratory) acute lymphoblastic leukemia were randomized to inotuzumab ozogamicin (n = 164) or SC (n = 162). Outcomes were analyzed by baseline CD22 positivity (percentage of leukemic blasts CD22 positive, >/=90% vs. <90%) and CD22 receptor density [molecules of equivalent soluble fluorochrome (MESF), quartile analysis]. RESULTS: Most patients had high (>/=90%) CD22 positivity per central laboratory. The response rate was significantly higher with inotuzumab ozogamicin versus SC. Minimal/measurable residual disease negativity, duration of remission (DoR), progression-free survival, and overall survival (OS) were significantly better with inotuzumab ozogamicin versus SC in patients with CD22 positivity >/=90%. Fewer patients had CD22 positivity <90%; for whom, response rates were higher with inotuzumab ozogamicin versus SC, but DoR and OS appeared similar. Similar trends were evident in quartile analyses of CD22 MESF and CD22 positivity per local laboratory. Among inotuzumab ozogamicin-responding patients with subsequent relapse, decrease in CD22 positivity and receptor density was evident, but not the emergence of CD22 negativity. Rates of grade >/=3 hematologic adverse events (AEs) were similar and hepatobiliary AEs rate was higher for inotuzumab ozogamicin versus SC. No apparent relationship was observed between the rates of hematologic and hepatic AEs and CD22 expression. CONCLUSIONS: Inotuzumab ozogamicin demonstrated a favorable benefit-risk profile versus SC in patients with higher and lower CD22 expression. Patients with high CD22 expression and normal cytogenetics benefited the most from inotuzumab ozogamicin therapy. CI - (c)2021 American Association for Cancer Research. FAU - Kantarjian, Hagop M AU - Kantarjian HM AD - MD Anderson Cancer Center, University of Texas, Houston, Texas. hkantarjian@mdanderson.org. FAU - Stock, Wendy AU - Stock W AD - University of Chicago, Chicago, Illinois. FAU - Cassaday, Ryan D AU - Cassaday RD AUID- ORCID: 0000-0002-3424-2425 AD - University of Washington School of Medicine and Fred Hutchinson Cancer Research Center, Seattle, Washington. FAU - DeAngelo, Daniel J AU - DeAngelo DJ AUID- ORCID: 0000-0001-7865-2306 AD - Dana-Farber Cancer Institute, Boston, Massachusetts. FAU - Jabbour, Elias AU - Jabbour E AD - MD Anderson Cancer Center, University of Texas, Houston, Texas. FAU - O'Brien, Susan M AU - O'Brien SM AD - Chao Family Comprehensive Cancer Center, University of California Irvine, Orange, California. FAU - Stelljes, Matthias AU - Stelljes M AD - Universitatsklinikum Munster, Munster, Germany. FAU - Wang, Tao AU - Wang T AD - Pfizer Inc., Cambridge, Massachusetts. FAU - Paccagnella, M Luisa AU - Paccagnella ML AD - Pfizer Inc., Groton, Connecticut. FAU - Nguyen, Kevin AU - Nguyen K AD - Navigate BioPharma Services, Inc., a Novartis subsidiary, Carlsbad, California. FAU - Sleight, Barbara AU - Sleight B AD - Pfizer Inc., Groton, Connecticut. FAU - Vandendries, Erik AU - Vandendries E AD - Pfizer Inc., Cambridge, Massachusetts. FAU - Neuhof, Alexander AU - Neuhof A AD - Pfizer Pharma GmbH, Berlin, Germany. FAU - Laird, A Douglas AU - Laird AD AD - Pfizer Inc., San Francisco, California. FAU - Advani, Anjali S AU - Advani AS AD - Cleveland Clinic, Cleveland, Ohio. LA - eng SI - ClinicalTrials.gov/NCT01564784 PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210218 PL - United States TA - Clin Cancer Res JT - Clinical cancer research : an official journal of the American Association for Cancer Research JID - 9502500 RN - 0 (Antineoplastic Agents, Immunological) RN - 0 (CD22 protein, human) RN - 0 (Sialic Acid Binding Ig-like Lectin 2) RN - P93RUU11P7 (Inotuzumab Ozogamicin) SB - IM MH - Antineoplastic Agents, Immunological/administration & dosage/adverse effects/*therapeutic use MH - Disease Management MH - Disease Susceptibility MH - Drug Resistance, Neoplasm MH - Humans MH - Inotuzumab Ozogamicin/administration & dosage/adverse effects/*therapeutic use MH - Precursor Cell Lymphoblastic Leukemia-Lymphoma/*drug therapy/etiology/metabolism/*pathology MH - Recurrence MH - Retreatment MH - Sialic Acid Binding Ig-like Lectin 2/metabolism MH - Treatment Outcome EDAT- 2021/02/20 06:00 MHDA- 2022/03/17 06:00 CRDT- 2021/02/19 05:54 PHST- 2020/06/21 00:00 [received] PHST- 2020/12/03 00:00 [revised] PHST- 2021/02/10 00:00 [accepted] PHST- 2021/02/20 06:00 [pubmed] PHST- 2022/03/17 06:00 [medline] PHST- 2021/02/19 05:54 [entrez] AID - 1078-0432.CCR-20-2399 [pii] AID - 10.1158/1078-0432.CCR-20-2399 [doi] PST - ppublish SO - Clin Cancer Res. 2021 May 15;27(10):2742-2754. doi: 10.1158/1078-0432.CCR-20-2399. Epub 2021 Feb 18.